Weighing scale



FIG. 1 is a top, front and right side perspective view of a weighing scale in accordance with the new design;

FIG. 2 is a top, rear and left side perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a rear view thereof;

FIG. 8 is a right side perspective view; and,

FIG. 9 is a bottom view thereof. 

The ornamental design for a weighing scale, as shown and described. 